Google BrailleBack

Adapt an Android for the blind

AAAD

Install unofficial applications for Android Auto

GMD Gesture Control

Configure gesture control actions for your Android

utter!

Control your Android with voice commands

Apex Launcher

One of the most powerful launchers

Swapps!

Switch from one application to another very easily

Magus

Use your phone with 3D gestures

Hovering Controls

Control your Android without touching the screen

Air Swiper

Control your Android without touching the screen

Pressy

A button for all your phone's functions

Nova Launcher

Customize your Android with one of the best application launchers

Twisty Launcher

Your application launcher specialized in gestures

Quick Reboot

Create shortcuts to the operating system's reboot

miUnlock

Blow or shake your smartphone to unlock it

Firefox OS

Mozilla's official launcher that emulates Firefox OS

XOS Launcher

Nice customizable launcher for Android

ElectroDroid

Resources for electronics professionals and enthusiasts

Plant Care Reminder

Learn to take care of your plants

wikiHow

Consists of tens of thousands of explanatory tutorials

Rock Identifier

Identify rocks and discover the rocks around you

iFixit

An all-purpose repair manual

Picture Insect

Insect identifier for cell phones

HiCare - Huawei

Huawei post-sales service app

Google Arts & Culture

Google brings art to your smartphone

Wikipedia

The biggest reference work in the palm of your hand

Plant App

Learn to identify and care for plants

Infocar

Digital car diagnostic tool

Shroomify

Discover all the secrets of mushrooms

Instructables

All the tutorials you can think of

Samsung Members

Make the most of your Samsung device

Kiwix

The offline version of Wikipedia on your phone